Plectranthus (Blue spur flower)
How to Control: Dig out small plants, removing all stem fragments. Dispose of at a refuse transfer station or burn or bury deeply. Cut stump application: Cut low and treat stump with (200ml glyphosate/1L water) or (1g metsulfuron/1L water) or (100ml triclopyr/1L water). Spray all year round (100ml glyphosate + 20ml penetrant/10L water) or (2g […]
Mistflower
How to Control: Introduce Entyloma fungus & gall-fly wherever possible. The fungus may take several years to become dominant. Dig out or hand pull small infestations. All roots need to be removed as even small pieces of root regrow. Roots can be hung up off ground to die Weed wipe, all year round (300ml glyphosate/1L […]
Mexican Devil
How to Control: Dig out or hand pull small infestations. Expose roots. Cut stems and treat with (5g metsulfuron-methyl /1L water) Weed wipe all year round (330ml glyphosate/1L water) or (2g metsulfuron/1L water ). Spray, lightly, not to run off, (200ml glyphosate + 20ml penetrant/10L water) or (5g metsulfuron /10L water – add 10ml penetrant […]
Mexican Daisy
For more information and pictures of this weed check out the Weedbusters info page.
Lantana
How to Control: Dig out. Generally not recommended as roots resprout unless all fragments removed. Use only on small plants and where herbicides cannot be used. Cut stump application: cut low and treat stumps with (200ml glyphosate/1L water). Spray (best in Nov & Dec) with (125ml glyphosate + 20ml penetrant/10L water) or (100ml Tordon Gold/10L […]
Fairy Crassula
How to Control: Handweed and dispose of all plant material at a refuse transfer station. Spray with (200ml glyphosate/10L water + 20ml penetrant). Caution: when using any herbicide or pesticide PLEASE READ THE LABEL THOROUGHLY to ensure that all instructions and safety requirements are followed.
Christmas (Formosa) Lily
What does it look like? Upright herbaceous plant with perennial underground bulbs producing annual shoots (<1-2m tall). Erect unbranched stems are mostly smooth and dark green in colour, but can be purplish-brown towards the base. Alternately arranged stalkless, hairless leaves (7.5-20 cm long and 5-10 mm wide) with smooth edges are elongated or linear in shape and […]
Cape Gooseberry
How to Control: Remove by hand. Spray large areas (100ml glyphosate/10L water). Caution: when using any herbicide or pesticide PLEASE READ THE LABEL THOROUGHLY to ensure that all instructions and safety requirements are followed. For more information and pictures of this weed check out this Auckland Council info page.
Canna Lily
How to Control: Dig out scattered plants (all year round). Remove all roots and rhizomes and dispose of at a refuse transfer station. Cut stump application: Cut stems and treat with (1g metsulfuron + 50ml glyphosate + penetrant/1L water), or a 3-5mm layer of Vigilant® gel. Mulch the leaves and dispose of seeds at a […]
Bear’s Breeches
Additional safety note: Wear gloves when working as spines can cause injury. How to Control: Dig out scattered plants (all year round): Ensure removal of all roots as even small pieces left behind will regrow, and dispose of roots and seedheads at a refuse transfer station. Leaves can be mulched. Limited documented herbicide based control […]